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Camera setups designed to nab red light scofflaws were activated Friday at three more San Diego road crossings, bringing the number of intersections eyeballed by the devices to 11, police said.

The new photo-enforcement safety equipment will monitor Camino del Rio North at Qualcomm Way in Mission Valley; Clairemont Mesa Boulevard at Convoy Street in Kearny Mesa; and Cleveland Avenue at Washington Street in University Heights, police spokesperson Monica Munoz said.

The system, which takes photos of both the front and back of violators' vehicles, while shooting 12-second video snippets of the infraction, is triggered by roadway sensors that activate when the subject traffic light turns red.

"A motorist who is caught in the intersection while the signal light is yellow will not be photographed," Munoz said.

A stoplight-running violation carries a minimum penalty of $436. For the next 30 days, however, offenders nabbed at the newly equipped road crossings will receive warnings only, she said.

Here are the other intersections equipped with the camera setups:

-- A Street at 10th Avenue in the Core-Columbia district;-- Aero Drive at Murphy Canyon Road in Serra Mesa;-- Camino del Rio North at Mission Center Road in Mission Valley;-- El Camino Real at Del Mar Heights Road in the North City area;-- Garnet Avenue at Mission Bay Drive in Pacific Beach;-- Grape Street at North Harbor Drive in the Harborview area;-- Mira Mesa Boulevard at Scranton Road in Sorrento Valley; and-- 10th Avenue at F Street in the downtown East Village district.